Bernal Sphere agricultural rings seen in cross-section. Farming
occurs in the upper layers, and animal husbandry in the lower
layers where gravity is a little stronger. Painting by Rick Guidice
courtesy of NASA.

Bernal Sphere low-gravity recreation area at dusk, protected
by netting. Gravity becomes lower as you approach the center,
and at the very top are the zero-gravity honeymoon suites. Painting
by Don Davis courtesy of L5 News and National Space Society.